"Grandpa!" Goku cried in delight as he rushed toward Son Gohan, leaping onto his face and hugging him tightly. Like a little monkey, he rubbed his cheek against Son Gohan's. The grandfather and grandson happily embraced each other. "Grandpa!?" Yamcha, Puar, Krillin, and Bulma stared wide-eyed, utterly astonished. They had never expected the fifth warrior to be Goku's grandfather, Son Gohan. No wonder he could use the Kamehameha. Son Gohan was Master Roshi's eldest disciple, so of course he could use the Kamehameha.